Past Tenses
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Costain Past Tense

costained
past tense of costain is costained.

Costain verb forms

InfinitivePresent ParticiplePast TensePast Participle
costaincostainingcostainedcostained

Conjugation of Costain

Simple / Indefinite Present Tense
He/She/It costains .
I costain.
You/We/They costain.

Present Continuous Tense
He/She/It is costaining.
I am costaining.
You/We/They are costaining.

Present Perfect Tense
He/She/It has costained.
I have costained.
You/We/They have costained.

Present Perfect Continuous Tense
He/She/It has been costaining.
I have been costaining.
You/We/They have been costaining.

Simple Past Tense
He/She/It costained.
I costained.
You/We/They costained.

Past Continuous Tense
He/She/It was costaining.
I was costaining.
You/We/They were costaining.

Past Perfect Tense
He/She/It had costained.
I had costained.
You/We/They had costained.

Past Perfect Continuous Tense
He/She/It had been costaining.
I had been costaining.
You/We/They had been costaining.

Simple Future Tense
He/She/It will/shall costain.
I will/shall costain.
You/We/They will/shall costain.

Future Continuous Tense
He/She/It will/shall be costaining.
I will/shall be costaining.
You/We/They will/shall be costaining.

Future Perfect Tense
He/She/It will/shall have costained.
I will/shall have costained.
You/We/They will/shall have costained.

Future Perfect Continuous Tense
He/She/It will/shall have been costaining.
I will/shall have been costaining.
You/We/They will/shall have been costaining.

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